NLO Antenna Subtraction with Massive Fermions

TL;DR

This paper extends the NLO antenna subtraction formalism to include massive fermions, deriving and integrating the necessary antenna functions to handle all relevant QCD limits involving massive final-state fermions.

Contribution

It introduces a new extension of the antenna subtraction method at NLO that incorporates massive fermions in the final state, with derived and integrated antenna functions.

Findings

Derived NLO massive final-final antenna functions.

Accounted for all soft, collinear, and quasi-collinear limits.

Provided integrated antenna functions for massive fermions.

Abstract

We present an extension of the antenna subtraction formalism at NLO to include massive final state fermions. The basic ingredients to the subtraction terms, the NLO massive final-final antenna functions are derived and integrated over the corresponding factorised phase space. Those antenna functions account for all soft, collinear and quasi-collinear limits of the QCD matrix elements involving massive fermions in the final state.